diff --git a/test/_fixtures/now-json/a.js b/test/_fixtures/now-json/a.js
new file mode 100644
index 0000000..95c1988
--- /dev/null
+++ b/test/_fixtures/now-json/a.js
@@ -0,0 +1 @@
+// should not be included
diff --git a/test/_fixtures/now-json/b.js b/test/_fixtures/now-json/b.js
new file mode 100644
index 0000000..dcdb2da
--- /dev/null
+++ b/test/_fixtures/now-json/b.js
@@ -0,0 +1 @@
+// should be included
diff --git a/test/_fixtures/now-json/now.json b/test/_fixtures/now-json/now.json
new file mode 100644
index 0000000..5acf2cb
--- /dev/null
+++ b/test/_fixtures/now-json/now.json
@@ -0,0 +1,5 @@
+{
+  "files": [
+    "b.js"
+  ]
+}
diff --git a/test/_fixtures/now-json/package.json b/test/_fixtures/now-json/package.json
new file mode 100644
index 0000000..c679e7f
--- /dev/null
+++ b/test/_fixtures/now-json/package.json
@@ -0,0 +1,9 @@
+{
+  "name": "woot",
+  "version": "0.0.1",
+  "description": "",
+  "dependencies": {},
+  "files": [
+    "a.js"
+  ]
+}
diff --git a/test/index.js b/test/index.js
index d4c49d1..4df2279 100644
--- a/test/index.js
+++ b/test/index.js
@@ -165,3 +165,11 @@ test('prefix regression', async t => {
   t.is(base(files[0]), 'prefix-regression/package.json')
   t.is(base(files[1]), 'prefix-regression/woot.js')
 })
+
+test.only('support `now.json` files', async t => {
+  let files = await getNpmFiles(fixture('now-json'))
+  files = files.sort(alpha)
+  t.is(files.length, 2)
+  t.is(base(files[0]), 'now-json/b.js')
+  t.is(base(files[1]), 'now-json/package.json')
+})